378021819

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{42157}}^1$

素因数の和:42235

約数の個数: 24

約数和(自身を含む): 595945488

約数和(自身を除く): 217923669

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 2989, 8967, 42157, 126471, 295099, 885297, 2065693, 2571577, 6197079, 7714731, 18001039, 54003117, 126007273, 378021819]

約数ペア:

[(1, 378021819), (3, 126007273), (7, 54003117), (21, 18001039), (49, 7714731), (61, 6197079), (147, 2571577), (183, 2065693), (427, 885297), (1281, 295099), (2989, 126471), (8967, 42157)]